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Price shown excludes VAT.
VAT relief available on this product
Eligible customers can claim VAT relief on this product at checkout.
Price shown excludes VAT.
VAT relief available on this product
Eligible customers can claim VAT relief on this product at checkout.
Price shown excludes VAT.
VAT relief available on this product
Eligible customers can claim VAT relief on this product at checkout.
Add the whole set in one go.
ALVERA AirGuard™ Filter Cover Compatible with AirSense 10 Devices
£5.49
This item
The filter cover is the small clip-on panel that holds the air filter against the inlet on the side of the machine. It is easy to dismiss as trim, and it is not. Without it the filter is not held flat against the inlet, so air takes the path of least resistance around the edge of the filter rather than through it. The machine then draws unfiltered room air straight into the blower and down the hose. The cover is also the part most often lost, because it comes off every time the filter is changed, it is small enough to slide behind a bedside table, and it travels loose in a bag. Select single pack or twin pack from the options on this page.
Never run the machine without the cover fitted
Why the cover is worth keeping in stockFilter covers go missing at a rate out of all proportion to their importance. The cover comes off at every filter change, which is monthly at most intervals, and it is a small light piece of plastic that is easy to put down and lose. It also travels badly: packed loose in an overnight bag it can be left behind in a hotel room or crushed against something heavier.
The consequence is that a machine ends up running with an open filter recess for weeks, which quietly undoes the whole point of filtration and leaves dust and pet dander accumulating inside a blower nobody can clean. Buying a spare cover costs very little against a machine that has ingested months of unfiltered air, and it means a lost cover is a nuisance for one evening rather than a problem for a month.
The twin pack suits a household with two machines, or anyone who travels with theirs and wants one permanently in the bag.

Check the machine before ordering
This cover fits AirSense 10 machines. It does not fit AirSense 11 or AirMini machines, which use different filter arrangements, and it should not be forced onto a machine it was not shaped for. The machine model is printed on the underside of the device. Where the model is not certain, ask before ordering.
Specification limited to what is confirmed
Material and dimensions are not stated here pending confirmation against the production record, and should not be assumed from the description above. Ask before ordering if either is needed.
| Action | Detail | Interval |
|---|---|---|
| Refit after a filter change | Seat the cover fully and confirm it clicks home before the machine is used | Every filter change |
| Wipe | Wipe with a damp cloth alongside the machine housing, machine disconnected from the mains | Weekly |
| Inspect | Check the clips and the body for cracks, and confirm the cover still holds firmly | Monthly |
| Check the inlet | Confirm the air inlet is clear and the machine is not pushed against a wall or covered | Weekly |
| Renew | Fit a fresh cover when a clip breaks, the body cracks or the cover no longer holds the filter flat | As required |
The above is general guidance for a single user. The instructions supplied with the machine take precedence.
Alvera is the own-brand accessory range from Elarix Medical, covering the consumables that sleep therapy depends on and that need renewing on a schedule. AirGuard covers filter covers, alongside PureFlow machine filters, PureGuard in-line bacteria filters, AirLink connectors and adapters, AirStrap headgear and clips, ThermaAir heated tubing, AirFlex tubing, AquaPure water chambers, AirSoft cushions and PureWipe cleaning wipes. Products are individually referenced and barcoded, so a repeat order is placed against a code rather than a description.
Specifications can change without notice. Ask us for the current technical file.
Ordered before 1pm Monday to Friday, dispatched the same working day from Leeds. Deliveries run Monday to Saturday, never Sunday.
UK mainland, light items: 1 to 2 working days. Heavy and bulky: 2 to 4 working days.
International orders ship on a Delivered At Place basis. Import duty, local tax and customs clearance fees are charged by the destination country and are the buyer's responsibility.
Unopened items can be returned within 30 days of delivery. Tell us before you send anything back so we can give you a returns reference.
Opened items that touch the airway cannot be returned for hygiene reasons unless they are faulty.
This does not affect your statutory rights.
Refunds are issued to the original payment method once the returned item reaches us and has been checked, normally within five working days.
Faulty items are refunded in full, including the delivery you paid.
Information on this page is provided for guidance and does not replace advice from a qualified clinician. Always read the manufacturer's instructions before use, and check that a device is suitable for the patient and the prescribed therapy.
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